Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.

A suite of WiFi/Bluetooth offensive and defensive tools for the ESP32

Home automation firmware for ESP8266-based devices

This is optimized firmware for Ender3 V2/S1 3D printers.

Heimdall is a cross-platform open-source tool suite used to flash firmware (aka ROMs) onto Samsung Galaxy devices.

Arduino/ESP32 based DIY VR Haptic gloves. Compatible with SteamVR via OpenGloves.

OpenTX custom firmware for Transmitters

Apple HomeKit firmware for Shelly's

FW for ESP8266/ESP8285/ESP32 used with 3D printer

Multi-Platform Gamepad Firmware for Raspberry Pi Pico and other RP2040 boards

Update your CFW, cheat codes, firmwares and more directly from your Nintendo Switch!

IDA plugin and loader for UEFI firmware analysis and reverse engineering automation

OTA updates made slick and simple for everyone! (ESP8266, ESP32, RP2040+W, RP2350+W)

The smallest public printf implementation for its feature set.

C++ library for composing modular firmware at compile-time.

UPDI programmer software for Arduino (targets Tiny AVR-0/1/2, Mega AVR-0 and AVR-DA/DB MCUs)

A LoRa based APRS tracker for ESP32 boards.

Extract BIOS firmware from Intel-based workstations and laptops

A userspace cross-platform EFI boot entry management GUI App based on Qt.

Firmware for ESP8266 based itead Sonoff switches for use with HomeAssistant / mqtt